JP2011179977A - Navigation device, navigation method, and navigation program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify operations ranging from obtaining of information on a destination to setting of the destination. <P>SOLUTION: A navigation device 10 includes a facility information storage part storing facility information to which each classification including a facility address has been related to; displays various information in a display screen; accepts touch operation of the display screen in which the various information is being displayed; identifies a character string by recognizing characters of the information being displayed in a range designated by range designation operation (for example, a character string recognition range AB) in accordance with acceptance of the range designation operation by the touch operation; analyzes the identified character string to determine the classification of the character string; refers to the facility information in accordance with determination that an address is included in the classification of the character string; decides a destination address based on the address indicated by the character string; searches for a route, taking the decided destination address as the destination; and displays the searched route on a map displayed in the display screen as a recommended moving route. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a navigation device provided with an image display means, a navigation method, and a navigation program for controlling the operation of the navigation device.

  In recent years, with the widespread use of mobile terminals with communication functions, a plurality of apparatuses that perform route guidance to a destination using mobile terminals have been proposed.

  In such a device, the user needs to input the address of the destination location to the navigation device. If the address is not known, it is necessary to cause the navigation device to search for the address of the destination by inputting the name or telephone number of the destination facility or the like.

  Also disclosed is an apparatus that provides a user with a destination candidate using a landmark and area information when the address or facility name of the user's destination is unclear (patent) Reference 1).

JP 2009-198660 A

  On the other hand, in recent years, it has become common to view television broadcasts with a mobile terminal or to acquire various information by connecting to the Internet. For this reason, it is considered that the number of users who decide destinations such as trips using these as information sources is increasing.

  However, in the conventional apparatus, when the user sets the destination, it is necessary to start up a dedicated application and input information for specifying the destination. There was a problem that it might be allowed to. In addition, if the mobile terminal is displaying a navigation map, an apparatus that can easily set a destination by selecting a position corresponding to the destination on the map is also known. In this case, there is a problem that when the destination is selected, the information obtained from the display screen by the user is limited to the approximate map information.

  In order to solve the above-described problem, an object of the present invention is to make it easy to perform operations from acquisition of information about a destination to setting of the destination.

  The navigation device of the present invention is a navigation device that displays a current position of a moving body on a map on a display screen of a display device and guides the moving body to a destination, and each classification including an address of a facility or the like Facility information storage means for storing associated facility information, information display means for displaying various information on the display screen, touch operation accepting means for accepting a touch operation on the display screen on which the various information is displayed, The character that identifies the character string by recognizing the display information displayed in the range specified by the range specifying operation in response to the range specifying operation by the touch operation being received by the touch operation receiving unit And a class determination unit that analyzes the character string specified by the character string specifying unit and determines the classification of the character string. The destination address which is an address based on the address indicated by the character string with reference to the facility information in response to the classification determining means determining that the address is included in the character string classification Destination address determination means, route search means for performing a route search using the destination address determined by the destination address determination means as a destination, and a route searched by the route search means as a recommended travel route And a recommended movement route display means for displaying on a map on the display screen.

  With the above configuration, operations from acquisition of information about the destination to setting of the destination can be simplified.

  The facility classification includes a telephone number of the facility, etc., and the destination address determining means is responsive to the classification determining means determining that the character string classification includes a telephone number, With reference to the facility information, an address of the facility or the like associated with the telephone number indicated by the character string may be determined as the destination address.

  The facility classification includes a facility name indicating the name of the facility, etc., and the destination address determining unit is responsive to the classification determining unit determining that the facility name is included in the character string classification. In addition, referring to the facility information, an address of a facility or the like associated with the facility name indicated by the character string may be determined as a destination address.

  The character string specifying unit includes a still image display unit that stops a moving image displayed on a display screen and displays a still image in response to a moving image stop operation by a touch operation being received by the touch operation receiving unit. Is a range designated by the range designation operation when a range designation operation in the still image by the touch operation is accepted by the touch operation accepting unit when a still image is displayed on the display screen. The character string may be specified by recognizing the display information displayed on the screen.

  The navigation method of the present invention is a navigation method for guiding the moving body to a destination by displaying the current position of the moving body on a map on the display screen of the display device, and displaying various information on the display screen. In response to the information display processing to be performed, the touch operation acceptance processing for accepting a touch operation on the display screen on which the various types of information are displayed, and the range designation operation by the touch operation being accepted in the touch operation acceptance processing, Character string identification processing for identifying a character string by recognizing display information displayed in the range designated by the range designation operation, and analyzing the character string identified in the character string identification processing A classification determination process for determining a column classification and an address of a facility or the like is included according to the classification determination process determining that an address is included in the character string classification. A destination address that is a destination address is determined based on the address indicated by the character string with reference to the facility information stored in the facility information storage unit that stores the facility information associated with each classification. Destination address determination processing, route search processing for performing a route search using the destination address determined in the destination address determination processing as a destination, and the route searched in the route search processing as a recommended movement route, the display screen And a recommended travel route display process for displaying on the map.

  Furthermore, the navigation program of the present invention is a navigation program for displaying the current position of a moving body on a map on a display screen of a display device and guiding the moving body to a destination, wherein the display screen is displayed on a computer. An information display process for displaying various types of information, a touch operation reception process for receiving a touch operation on the display screen on which the various types of information are displayed, and a range specifying operation by a touch operation has been received in the touch operation reception process Accordingly, the character string specifying process for specifying the character string by recognizing the display information displayed in the range specified by the range specifying operation, and the character string specified by the character string specifying process A classification determination process for analyzing and determining the classification of the character string, and an address is included in the classification of the character string in the classification determination process Based on the address indicated by the character string with reference to the facility information stored in the facility information storage means for storing the facility information associated with each category including the address of the facility, etc. Destination address determination processing for determining a destination address that is a destination address, route search processing for performing a route search using the destination address determined in the destination address determination processing as a destination, and the route search processing This is for executing the recommended travel route display processing for displaying the route searched in step 1 as a recommended travel route on the map on the display screen.

  According to the present invention, it is possible to simplify operations from acquisition of information about a destination to setting of the destination.

It is the schematic which shows the example of a structure of the navigation system which concerns on this invention. It is a block diagram which shows the example of a structure of the navigation apparatus concerning this invention. It is explanatory drawing which shows the example of the storage state of POI information. It is a flowchart which shows the example of a navigation process. It is explanatory drawing which shows the example of a moving image screen. It is explanatory drawing which shows the example of a moving image screen. It is explanatory drawing for demonstrating the example of range designation | designated operation. It is explanatory drawing which shows the example of a navigation screen. It is explanatory drawing which shows the other example of a moving image screen.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration example of a navigation system 100 using a navigation device 10 according to an embodiment of the present invention. As shown in FIG. 1, the navigation system 100 includes a navigation device 10, a base station 20, and a content distribution server 30. The base station 20 and the content distribution server 30 are respectively connected by a communication network 50 such as the Internet or cable television. The navigation terminal 10 communicates with the content distribution server 30 by connecting to the communication network 50 via the base station 20.

  The navigation apparatus 10 is configured by an information processing apparatus such as a mobile type personal computer, a PND (Portable Navigation Device), or a dedicated device. The navigation apparatus 10 includes a CPU (Central Processing Unit), a DSP (Digital Signal Processor), a program storage unit, an OS (Operating System), and the like. The CPU has a function of controlling and controlling each component of the navigation device 10 according to the computer program stored in the program storage unit and executing various processes including a route search process, a route guidance process, and a navigation process. The DSP has a function of executing processing such as sound processing and image processing separately from the CPU. The program storage unit includes a ROM (Read Only Memory), a RAM (Random Access Memory), and the like, and is a storage medium that stores various computer programs used by the navigation device 10. Note that these various functions are realized by known techniques included in general navigation devices.

  FIG. 2 is a block diagram showing a configuration example of the navigation device 10 in this example. As shown in FIG. 2, the navigation device 10 includes a control unit C, a route search unit 11, a position positioning unit 12, an input unit 13, an output unit 14, an image processing unit (capture processing unit) 15, A character recognition unit 16, a search unit 17, a communication processing unit 18, and a storage unit F are included. In addition, each part which comprises the navigation apparatus 10 is connected to the bus | bath B which transmits a control signal, data, etc.

  The control unit C includes a CPU, a ROM, a RAM, and the like. The control unit C controls and controls each component of the navigation device 10 according to a computer program (navigation program) stored in the storage unit F, and executes various processes. Have

  The route search unit 11 performs route search processing for deriving a recommended travel route from a departure position (for example, current position) to a destination. In the route search process, for example, input of destination information (for example, an address of a facility as a destination) from the user is received, and location information of the destination is specified based on the received destination information, and the current location is determined. A process for deriving a recommended travel route to the destination and generating a map around the travel route including a road map including the derived recommended travel route is performed. In addition, since a well-known technique is used about a route search process, detailed description here is abbreviate | omitted. Moreover, it is good also as a structure which derives | leads out the recommended movement path | route according to a user's moving method (walking, a vehicle, a train etc.).

  The position measurement unit 12 is a concept that includes a moving body (this “moving body” includes the navigation device 10 itself and an object such as a vehicle or a human that moves with the navigation device 10. Hereinafter, the navigation device 10 is referred to as a moving body. A GPS sensor that measures the current position based on the received GPS signal, and a user who measures the current position of the user. These include a speed sensor and an acceleration sensor for measuring the moving speed of the robot, a gyro sensor for measuring a traveling (moving) direction, and the like.

  A GPS sensor is a so-called GPS receiver, receives a GPS signal radiated from a GPS satellite, measures a distance (pseudo distance) between the GPS satellite and the GPS receiver itself, and receives a plurality of satellites. Are simultaneously received to calculate the current position (GPS positioning solution) of the GPS receiver itself.

  In addition to the GPS receiver (antenna) that receives the GPS signal, the position measurement unit 12 includes a signal processing unit that performs processing such as decoding of the received GPS signal.

  The input unit 13 has a function for accepting various instructions to the navigation device 10. In this example, the input unit 13 includes, for example, a push button (not shown) provided in the navigation device 10 or an operation button (touch panel) displayed on the display screen of the image display unit 14a. The touch panel accepts a predetermined touch operation (for example, an operation of touching the touch panel with a finger or a touch pen and releasing the touch panel within a predetermined time or an operation of changing the contact position while touching the touch panel).

  The output unit 14 generates output information according to various information received from each unit constituting the navigation device 10, and displays an image display unit (display device, monitor) 14 a that displays an image, and an audio output unit that outputs sound. (Speaker device) Output information is transmitted to 14b.

  The image display unit 14a displays, for example, the map information and the current position information of the user on the display screen, and also displays the optimum guidance route to the destination on the display screen, so that the movement route can be visually confirmed. Get directions. Further, the image display unit 14a acquires from the content distribution server 30 for image input (input of image information to the navigation screen) used for route guidance and content image input (content screen such as a video screen displaying a video). Input of the content information).

  In addition, the voice output unit 14b outputs the guidance voice information by voice, thereby informing the route of the moving route by hearing. In addition, when POI (Point Of Interest) information, advertisement information, and the like include guidance voice information, the voice output unit 14b broadcasts information about the guidance target object indicated by the POI information and advertisement information when the guidance voice information is included. .

  The image processing unit (capture processing unit) 15 has a function (capture processing function) for saving the screen displayed on the display screen of the image display unit 14a as a still image in the read image information storage unit F3. In this example, when the moving image is played on the display screen of the image display unit 14a according to the moving image information, the image processing unit 15 pauses the moving image according to the user's operation and is in a stationary state. Image information (still image) is acquired and stored in the read image information storage unit F3. Note that the image processing unit 15 is not necessarily required to store the image information, and may be configured to temporarily store the acquired image information and transmit the acquired image information to the character string recognition unit 16. Note that the image processing unit 15 includes not only a content screen such as a moving image screen on which a moving image is displayed, but also a navigation screen that displays a map, facility information, facility image, address information, phone book information, and the like. It is good.

  The character string recognition unit 16 has a function of extracting a character string included in the image indicated by the image information stored in the read image information storage unit F3. It should be noted that the character string is recognized by a known technique using an optical character recognition technique (OCR: Optical Character Reader). Also, the designation of the character area for the image information will be described together in the description of the navigation processing described later.

  The search unit 17 has a function of searching various information stored in the storage unit F in accordance with various processes executed by the control unit C. The search unit 17 classifies the character strings recognized by the character string recognition unit 16 into predetermined items based on the determination conditions stored in the storage unit F, and recognizes them using the character strings and the classifications. It has a function of searching for an address corresponding to a character string. The search for the address by the search unit 17 will be described together in the description of the navigation process described later (see FIG. 4).

  The communication processing unit 18 is connected to the communication network 50 wirelessly or by wire, and has a function for transmitting / receiving information to / from an external device such as the content distribution server 30 connected to the communication network 50. In this example, the communication processing unit 18 connects to the base station 20 by wireless communication, and connects to the content distribution server 30 via the communication network 50 to uniquely identify predetermined information (for example, the navigation device 10). A function of transmitting video identification information and the like and receiving moving image information.

  The storage unit F is a storage medium configured with a ROM, a RAM, or the like, and stores various computer programs used by the navigation device 10. The storage unit F in this example includes a guidance route information storage unit F1, a map information storage unit F2, a read image information storage unit F3, a registered character string information storage unit F4, and a POI information storage unit F5.

  The guidance route information storage unit F1 is a storage medium that stores guidance route information indicating the guidance route derived by the route search unit 11.

  The map information storage unit F2 is a storage medium that stores map information by dividing it into rectangular ranges (mesh) delimited by a fixed longitude width and latitude width. Further, the map information storage unit F2 manages roads as nodes and links, and stores road configuration node information and road configuration link information in association with position information for each road. The map information is stored in the map information storage unit F2, and can be stored in an auxiliary storage device as a removable medium called an SD memory card, a CD-ROM, a DVD-ROM, or the like. Alternatively, the map information may be downloaded via the communication network 50.

  The read image information storage unit F3 is a storage medium that stores image information acquired by the image processing unit 15.

  The registered character string information storage unit F4 is a storage medium that stores registered character string information, which is information used when character string recognition is performed. In this example, the registered character string information is information in which characteristic information indicating the characteristics of characters and character strings is associated with characters and character strings. The character string recognizing unit 16 collates information acquired from image information to be recognized with registered character string information, and specifies a character or a character string.

  The POI information storage unit F5 is a guide object (store, facility, resort, etc.) such as store information such as a gas station, convenience store, ramen store, hotel, inn, facility information indicating a famous facility, and resort location information indicating a resort. Is stored in association with the address.

  FIG. 3 is an explanatory diagram showing an example of the storage state of POI information in the POI information storage unit F3. As shown in FIG. 3, the POI information in this example is information in which a POI-ID for uniquely specifying a guidance object such as a facility, a telephone number, an address, and a facility name are associated with each other. . In this example, the telephone number, address, and facility name correspond to character string classifications.

  The content distribution server 30 is a server managed by a system administrator of the navigation system 100, for example, and is configured by an information processing apparatus such as a WWW server. In this example, the content distribution server 30 includes various content DBs including a moving image information DB (database) 41 that manages moving image information. In response to a content distribution request from the navigation device 10, the content distribution server 30 receives various content information including moving image information. It has a function of searching and providing the navigation apparatus 10 with content information corresponding to the content distribution request. Here, as another example of the various content information, for example, an electronic guidebook stored in a storage medium included in the navigation device 10 can be considered. An electronic guidebook is an electronic version of a book. For example, there are few cases where links are pasted to phone numbers or addresses, such as websites on the Internet. The indicated facility can be the destination. As a method for providing information to the navigation device 10, in addition to communication via the communication network 50 and the base station 20, information is stored in a portable memory such as a memory card or USB memory that can be attached to the navigation device 10. The method of memorizing can be considered.

  The moving image information DB 41 is a storage medium that stores moving image information such as movies and commercials, and audio information related thereto. The moving image information includes moving image information that displays facility specifying information that can specify the address of a specific facility such as an address, a telephone number, and a facility name by a character string. Similarly, other content information (for example, still image information) includes content information in which facility specifying information is displayed.

  Next, the operation of the navigation device 10 according to one embodiment of the present invention will be described with reference to the drawings. Note that a detailed description of processing not particularly related to the present invention may be omitted.

  FIG. 4 is a flowchart showing an example of navigation processing executed by the navigation device 10. In the navigation processing, the navigation device 10 extracts a search character string from the image displayed on the display screen, specifies a destination according to the extracted character string, and displays a recommended movement route from the current position to the destination. Processing is performed.

  In this example, the case where a moving image based on moving image information acquired by the navigation device 10 from the content distribution server 30 is displayed on the moving image screen on the display screen of the image display unit 14a will be described as an example.

  FIG. 5 is an explanatory diagram illustrating an example of a moving image screen displayed on the display screen 101 of the image display device 14 a provided in the navigation device 10. As shown in FIG. 5, the moving picture screen is provided with a moving picture reproduction area (in this example, the entire display screen 101 is a moving picture reproduction area).

  In the navigation process, the control unit C accepts a pause operation by the user (step S101). In this example, it is assumed that “a press of the display screen 101 of the image display unit 14a” is accepted as a pause operation. Here, when the pause operation is not accepted (N in step S101), the control unit C continues to play the moving image.

  On the other hand, as illustrated in FIG. 6, for example, when accepting that the display screen 101 has been pressed by the user's finger 200 (Y in Step S <b> 101), the control unit C places the moving image in a paused state (Step S <b> 102). At this time, the control unit C calculates the pressed position A by the input unit 13.

  When the moving image is paused, the control unit C accepts a range specifying operation by the user (step S103). In this example, as the range specifying operation, “an operation to end the pressed state after moving the pressed position while maintaining the pressed state of the display screen 101 by the temporary specifying operation” is accepted.

  FIG. 7 is an explanatory diagram for explaining an example of the range specifying operation. As shown in FIG. 7, when the finger 200 is moved in the horizontal direction while touching the display screen 101 and then released from the display screen 101, the control unit C causes the input unit 13 to move the position where the pressed state is completed (pressed down). The end position B) is calculated. When the pressing position A and the pressing end position B are calculated, the control unit C causes the image processing unit 15 to convert a linear area having a predetermined width connecting the pressing position A and the pressing end position B to a user-specified range (character string recognition range AB). And the image information indicating the image displayed in the character string recognition range AB is stored in the read image information storage unit F3 (that is, the image displayed in the character string recognition range AB is captured) (step) S104).

  Note that the method for determining the character string recognition range is not limited to this, and any method may be used as long as it can identify an area included in the moving image screen. However, it is preferable to use a touch operation using a touch panel so that the user can operate intuitively. Specifically, it is preferable that the user can determine the character string recognition range by an operation of tracing a character string on the screen with a finger or an operation of designating an area so as to be surrounded by a circle or a square. Moreover, it is good also as a structure which can select the several character string recognition range with respect to one moving image screen.

  Further, the range specifying operation may be accepted independently of the pause operation. That is, for example, when the display screen of the image display unit 14a is pressed and the pressed position is released without moving the pressed position, the control unit C performs a pause operation (if the pressed state is already in the paused state). , A reproduction operation) is received, and when the pressed state is released after the pressed position is moved, it may be determined that the range specifying operation is received. In this case, the control unit C is configured to store the image displayed in the character string recognition range when the character string recognition range is specified by the range specifying operation as a still image in the read image information storage unit F3. That's fine.

  When the character string recognition range is determined, the control unit C performs character string recognition by the character string recognition unit 16, recognizes the character string in the character string recognition range AB, and determines the recognized character string as a search character string. (Step S105). At this time, a plurality of search character strings may be recognized. That is, the character string recognition unit 16 has a function of dividing a character string recognized as a character string into a plurality of character strings by using, for example, morphological analysis or a keyword (for example, “address”, “phone number”, etc.). . Therefore, for example, as shown in FIG. 7, when a character string indicating an address and a telephone number is displayed in the character string recognition range AB, the character string recognition unit 16 displays “XX prefecture XX city × “XX” and “xxx-ΔΔΔ- □□□□” indicating the telephone number are recognized as different character strings included in the search character string.

  When the search character string is determined, the control unit C releases the moving image pause state (step S106).

  When the pause state of the moving image is canceled, the control unit C causes the search unit 17 to analyze the search character string and determine the classification of the search character string (step S107). In this example, the search unit 17 classifies the character strings included in the search character string into “address”, “phone number”, and “facility name” based on the determination condition stored in the storage unit F in advance. To do. Note that the classification at this time is not definitive and may be provisional.

  That is, the search unit 17 confirms whether or not the search character string includes a character string (address determination character string) that can be presumed to indicate an address, such as “city” or “prefecture”. If the determination character string is included, it is determined that “address” is included in the classification of the search character string. Further, the search unit 17 includes a character string (telephone number determination character string) that can be assumed that the search character string is likely to indicate a telephone number, such as “continuous numbers”, “−”, “,”, and the like. If the phone number determination character string is included, it is determined that “telephone number” is included in the classification of the search character string. If the search character string includes character strings that are not classified into “address” and “phone number”, the search unit 17 determines that “facility name” is included in the search character string classification. To do. For example, the determination condition stored in the storage unit F is not limited to including a specific character or character string (that is, an address determination character string, a telephone number determination character string, or the like). Also, it is assumed that a determination exclusion condition of “not determined as“ telephone number ”when it does not include 10 digits” is set.

  Therefore, in the case shown in FIG. 7, the search unit 17 searches the search character string “address: XX prefecture XX city XXX (line feed) telephone number: XXX-ΔΔΔ- □□□□”. Since “prefecture” and “city” are included, the character string “XX prefecture XX city xxx” is classified as “address”. In addition, because it is a “consecutive number” and includes “-” and “includes numbers within 10 digits”, the character string “XXX- △△△-□□□□” is changed to “phone number”. Classify. As a result, the search unit 17 determines that “address” and “phone number” are included in the classification of the search character string. Note that characters and character strings that are considered to be frequently used to indicate the location of a facility, such as “address”, “:”, and “phone number” included in the search character string, are classified in advance. It is stored in the registered character string information storage unit F4 as a character or character string to be used, and is not classified as “name” by the search unit 17.

  When the classification determination of the search character string is performed, the control unit C determines whether or not “address” is included in the classification of the search character string (step S108). If it is determined that “address” is not included in the classification of the search character string (N in step S108), the control unit C transitions to step S110.

  On the other hand, if it is determined that “address” is included in the classification of the search character string (Y in step S108), the control unit C uses the search unit 17 to character string (address classification character string) classified as “address”. ) Is retrieved from the POI information stored in the POI information storage unit F5 (step S109), and when the POI information is retrieved, the retrieval result is stored in the storage unit F.

  Note that the address search method is not limited to this. For example, the control unit C confirms whether there is an address that completely matches the address character string in the POI information to be searched, and matches completely. When there is no address, it is good also as a structure which classifies an address character string into a prefecture, a group, a city, a town, a town name, and an address, and determines whether an address character string is an "address except an address." In this case, when the control unit C determines that the address character string is “address excluding the address”, the control unit C performs the facility name search described later by narrowing down the POI information search target by the address character string. When it is determined that the address is not “an address”, another candidate may be processed (that is, an address is specified only by telephone number search and facility name search).

  When the address search is executed, the control unit C determines whether or not “telephone number” is included in the search character string classification (step S110). If it is determined that “telephone number” is not included in the classification of the search character string (N in step S110), the control unit C transitions to step S112.

  On the other hand, if it is determined that “telephone number” is included in the search character string classification (Y in step S110), the control unit C uses the search unit 17 to character string (telephone number) classified as “telephone number”. POI information corresponding to (character string) is searched from the POI information stored in the POI information storage unit F5 (step S111), and when the POI information is searched, the search result is stored in the storage unit F.

  The telephone number search method is not limited to this. For example, the control unit C checks whether there is a telephone number that completely matches the telephone number character string in the POI information to be searched, If there is no exact phone number, classify the phone number string into an area code, local area code, subscriber number, and whether the phone number string is "city code or local code" It is good also as a structure which determines. In this case, when the control unit C determines that the telephone number character string is “the area code or the city code”, the POI information search target is narrowed down by the telephone number character string and a facility name search described later is performed. When it is determined that it is not “area code or city code”, another candidate may be processed (that is, an address is specified only by address search and facility name search).

  When the telephone number search is executed, the control unit C determines whether or not “facility name” is included in the search character string classification (step S112). If it is determined that “facility name” is not included in the search character string classification (N in step S112), the control unit C transitions to step S114.

  On the other hand, if it is determined that “facility name” is included in the search character string classification (Y in step S112), the control unit C corresponds to the character string classified as “facility name” by the search unit 17. The POI information is searched from the POI information stored in the POI information storage unit F5 (step S113), and when the POI information is searched, the search result is stored in the storage unit F. When a plurality of POI information is searched at this time, the control unit C stores the POI information included in the search results of the address search and the telephone number search as the search results of the facility name search. Note that the search target may be limited to each search result.

  When POI information search processing (step S108 to step S113) according to the classification of the search character string is executed, the control unit C specifies an address from the POI information included in the search result, and sets the destination address (destination). Address) is determined (step S114). When a plurality of POI information is included in the search result, one address may be determined as the destination address according to setting conditions stored in advance in the storage unit F, and each address may be determined as the destination address. It is good also as a structure determined as. Further, in this example, the case where address search, telephone number search, and facility name search are used as POI information search has been described. However, the search order is random, and the change of the order or search element Additions and omissions are possible.

  When the destination address is determined, the control unit C causes the route search unit 11 to set the determined destination address as a route guidance destination, and derives a recommended travel route by route search processing (step S115). In addition, when the destination address shows a wide range such as a municipality, for example, if it is a city, the rules stored in the storage unit F are used in advance so that the location of the city hall is the coordinates of the destination. In response, the destination coordinates are specified or a wide area map is displayed.

  When the recommended travel route is derived, the control unit C displays a navigation screen including the travel route surrounding map generated by the route search unit 11 on the display screen 101 (step S116), and ends the processing here.

  FIG. 8 is an explanatory diagram illustrating an example of a navigation screen. As shown in FIG. 8, the navigation screen displays, as a travel route peripheral map, a travel route peripheral map display area 301 that shows the user's current position U, destination P, and recommended travel route, and from the current position U to the destination P. Related information display area 302 for displaying information related to route guidance such as travel distance and estimated arrival time when moving, and destination related image display for displaying moving pictures and still images (destination related images) related to the destination Region 303. Note that the configuration of the navigation screen is not limited to this, and for example, the display may be a configuration in which a map around the moving route is displayed on the entire screen 101 in accordance with a user operation.

  As described above, in the above-described embodiment, the current position of the moving object (for example, the user of the navigation device 10) is displayed on the map on the display screen of the display device (for example, the image display unit 14a). The navigation apparatus 10 that guides the mobile body to the destination stores a facility information storage unit (for example, a facility information storage unit) that stores facility information associated with each classification (for example, address, telephone number, facility name) including an address of a facility or the like POI information storage unit F5), and displays various information on the display screen (for example, addresses, telephone numbers, facility names, etc. displayed on the display screen based on various pieces of content information including moving image information). In response to a touch operation (for example, a pause operation or a range designation operation) on the display screen being accepted and a range designation operation by the touch operation being accepted A character string (for example, a search character string) is specified by recognizing display information displayed in a range (for example, a character string recognition range AB) specified by the range specifying operation, and the specified character string is analyzed. The character string classification (for example, the classification of the character string included in the search character string) is determined, and the facility information (for example, POI information storage) is determined in response to the determination that the character string classification includes an address. The destination address that is the destination address is determined based on the address indicated by the character string (for example, the address character string) with reference to the POI information stored in the part F5, and the determined destination address is the destination Since the route search is performed as a place and the searched route is displayed on the map on the display screen as a recommended movement route (for example, a map around the movement route), the destination setting is performed from the acquisition of information on the destination. So that it is possible to simplify the operation in.

  That is, for example, when facility identification information that can identify a facility address such as a facility address, telephone number, or facility name is displayed on the display screen of a facility introduction program, the facility identification information is displayed on the display screen. It is possible to acquire a recommended travel route from the current position to the facility simply by specifying the displayed range.

  In the embodiment described above, the navigation device 10 includes the telephone number of the facility in the classification of the facility, etc., and the telephone number is included in the character string classification (for example, the classification of the character string included in the search character string). If it is determined that the address of the facility or the like associated with the telephone number indicated by the character string (for example, telephone number character string) is referred to the facility information (for example, POI information), the destination address Therefore, even if a detailed address is not displayed, the destination can be set from the telephone number.

  Moreover, in embodiment mentioned above, the navigation apparatus 10 contains the facility name which shows the name of a facility etc. in the classification | category of a facility, etc., and facilities are included in the classification | category of a character string (for example, classification of the character string contained in a search character string). When it is determined that the name is included, referring to the facility information (for example, POI information), the address of the facility or the like associated with the facility name indicated by the character string (for example, the facility name character string) is displayed. Since the destination address is determined, the destination can be set even when only the facility name is displayed.

  In the above-described embodiment, the navigation device 10 stops the moving image displayed on the display screen in response to receiving a moving image stop operation (for example, a pause operation) by a touch operation, and a still image. When a still image is displayed on the display screen, the display that is displayed in the range specified by the range specification operation in response to the acceptance of the range specification operation in the still image by touch operation Since the character string is specified by recognizing the information, it is possible to prevent the display of the character string from being changed during the range specifying operation. Also, by adjusting the size of the designated range, the processing load required for character string recognition can be reduced.

  In the above-described embodiment, in response to the character string recognition range being determined by the range specifying operation, the control unit C performs application software (facility search or address search) stored in the storage unit F of the navigation device 10. And the application that has the phone number search and route search functions), the user can acquire the information necessary for setting the destination and set the acquired information as the destination for route guidance. It is possible to derive a recommended movement route from the current position to the destination only by receiving a temporary designation operation and a range designation operation from the current position. As a result, it is not necessary for the user to start a route search application in advance, and a recommended travel route to the intended destination can be obtained without performing the destination input operation. For example, even information on a facility obtained by chance from the content distribution server 30 can be easily used. In particular, when the navigation device 10 is configured to accept a temporary designation operation and a range designation operation through a series of operations, for example, when an address of a facility that attracts the user's interest during video playback is displayed, the user is 1 Since the recommended travel route can be obtained by the above operation, the user can more easily check the recommended travel route than the conventional navigation apparatus that requires a plurality of operations until the recommended travel route is obtained.

  Although not specifically mentioned in the above-described embodiment, when the navigation apparatus 10 determines the destination address, the navigation apparatus 10 displays a reception screen for receiving a destination address display request from the user, and receives the display request. In response to this, the destination address and a POI information related to the destination are displayed on the display screen, and a destination setting request for setting the displayed destination address as the destination is received from the user. It is good also as a structure. By adopting such a configuration, it is possible to avoid performing the route search process when unnecessary.

  In the above-described embodiment, the case where the video is paused and the character string recognition range is determined and the character string recognition is executed has been described as an example. Instead of the video pause, the entire video screen is displayed. May be stored as a still image, and designation of a character string recognition range from the user may be accepted at an arbitrary timing.

  FIG. 9 is an explanatory diagram illustrating an example of a moving image screen displayed on the display screen 101 in this case. As shown in FIG. 9, it is possible to continue the reproduction of the moving image on the display screen 101 and to provide a still image display area 401 for selectively displaying the stored still image. A user can specify a character string recognition range by enlarging and displaying a still image saved by the user.

  Although not specifically mentioned in the above-described embodiment, the image information that is the target of the navigation process by the navigation device 10 is not limited to the moving image information acquired via the communication network. That is, the image processing unit 15 may be anything that can be saved as a still image. For example, when receiving broadcast data broadcast from a television broadcast station or the like to reproduce a video, or to an information storage medium such as an SD memory card. The case where the stored moving image information is reproduced is also included. In this case, even when there is no telop (caption) in the video (television image) displayed based on the broadcast data, when characters are displayed (for example, when a signboard of a store is displayed) By receiving the designation of the range in which characters are displayed, the navigation device 10 can execute character string recognition.

  INDUSTRIAL APPLICABILITY The present invention is industrially useful in an industry that handles devices that provide route guidance to a destination, and is also useful in the market for electrical appliances such as navigation devices capable of information communication.

B bus C control unit F storage unit 10 navigation device 11 route search unit 12 position positioning unit 13 input unit 14 output unit 15 image processing unit 16 character string recognition unit 17 search unit 18 communication processing unit 20 base station 30 management server 31 video information DB
50 Communication network

Claims (6)

A navigation device for displaying a current position of a moving body on a map on a display screen of a display device and guiding the moving body to a destination,
Facility information storage means for storing facility information associated with each classification including an address such as a facility;
Information display means for displaying various information on the display screen;
Touch operation accepting means for accepting a touch operation on the display screen on which the various types of information are displayed;
A character string that identifies a character string by recognizing display information displayed in the range specified by the range specifying operation in response to the range specifying operation by the touch operation being received by the touch operation receiving unit Specific means,
Classification determination means for analyzing the character string specified by the character string specifying means and determining the classification of the character string;
In response to determining that the address is included in the classification of the character string by the classification determination unit, the destination address that is the destination based on the address indicated by the character string is referred to the facility information. A destination address determining means to determine;
Route search means for performing a route search using the destination address determined by the destination address determination means as a destination;
A navigation apparatus comprising: a recommended movement route display means for displaying the route searched by the route search means as a recommended movement route on a map on the display screen. The classification of the facility, etc. includes the telephone number of the facility, etc.
The destination address determining means refers to the facility information and associates with the telephone number indicated by the character string when the classification determining means determines that the character string classification includes a telephone number. The navigation apparatus according to claim 1, wherein an address of the facility or the like that has been determined is determined as a destination address. The classification of the facility includes a facility name indicating the name of the facility,
The destination address determining means refers to the facility information and associates with the facility name indicated by the character string when the classification determining means determines that the facility name is included in the character string classification. The navigation device according to claim 1, wherein an address of the facility or the like is determined as a destination address. A still image display unit configured to stop the moving image displayed on the display screen and display a still image in response to the moving image stop operation by the touch operation being received by the touch operation receiving unit;
The character string specifying unit performs the range specifying operation in response to the range specifying operation in the still image by the touch operation being received by the touch operation receiving unit when the still image is displayed on the display screen. The navigation device according to any one of claims 1 to 3, wherein a character string is identified by character recognition of display information displayed in a range specified by the item (1). A navigation method for displaying a current position of a moving object on a map on a display screen of a display device and guiding the moving object to a destination,
An information display process for displaying various information on the display screen;
Touch operation reception processing for receiving a touch operation on the display screen on which the various types of information are displayed;
A character that identifies a character string by recognizing display information displayed in the range specified by the range specifying operation in response to the range specifying operation by the touch operation being received in the touch operation receiving process Column identification processing,
A classification determination process for analyzing the character string specified in the character string determination process and determining a classification of the character string;
When it is determined that the address is included in the classification of the character string in the classification determination process, each classification including the address such as the facility is stored in the facility information storage unit that stores the associated facility information. With reference to the facility information, a destination address determination process for determining a destination address that is a destination address based on the address indicated by the character string;
A route search process for performing a route search using the destination address determined in the destination address determination process as a destination;
A recommended movement route display process for displaying the route searched in the route search process on the map on the display screen as a recommended movement route. A navigation program for displaying a current position of a moving object on a map on a display screen of a display device and guiding the moving object to a destination,
On the computer,
An information display process for displaying various information on the display screen;
Touch operation reception processing for receiving a touch operation on the display screen on which the various types of information are displayed;
A character that identifies a character string by recognizing display information displayed in the range specified by the range specifying operation in response to the range specifying operation by the touch operation being received in the touch operation receiving process Column identification processing,
A classification determination process for analyzing the character string specified in the character string determination process and determining a classification of the character string;
When it is determined that the address is included in the classification of the character string in the classification determination process, each classification including the address such as the facility is stored in the facility information storage unit that stores the associated facility information. With reference to the facility information, a destination address determination process for determining a destination address that is a destination address based on the address indicated by the character string;
A route search process for performing a route search using the destination address determined in the destination address determination process as a destination;
A navigation program for executing a recommended travel route display process for displaying a route searched in the route search process as a recommended travel route on a map on the display screen.

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